Experts believe they have uncovered enough evidence to suggest a Tudor-era portrait could be the only known image of Lady ...

Mary Tudor, from becoming Queen. The mysterious portrait, on loan to conservation charity English Heritage from a private collection, shows a young woman clad modestly in a white cap and shawl.

Image caption, A family portrait of the first Tudor kings by Remi van Leemput, painted 1669. Clockwise from back left: Henry VIII's parents Henry VII and Queen Elizabeth, Jane Seymour, Edward VI ...